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    BINAURAL HEARING AID SYSTEM AND A HEARING AID COMPRISING OWN VOICE ESTIMATION
    3.
    发明申请
    BINAURAL HEARING AID SYSTEM AND A HEARING AID COMPRISING OWN VOICE ESTIMATION 有权

    公开(公告)号：US20220132252A1

    公开(公告)日：2022-04-28

    申请号：US17512125

    申请日：2021-10-27

    Applicant: Oticon A/S

    Inventor： Michael Syskind PEDERSEN ,  Jan M. DE HAAN ,  Justyna WALASZEK ,  Anders Vinther OLSEN ,  Karsten BONKE ,  Matias Tofteby BACH ,  Sigurdur SIGURDSSON ,  Mojtaba FARMANI ,  Andreas Thelander BERTELSEN ,  Angela JOSUPEIT ,  Claus Forup Corlin JESPERSGAARD ,  Gusztáv LÕCSEI

    IPC: H04R25/00

    Abstract: A binaural hearing aid system includes first and second hearing aids configured to be worn by a user at or in respective first and second ears of the user, each of the first and second hearing aids including: at least one input transducer configured to pick up a sound at the at least one input transducer and to convert the sound to at least one electric input signal representative of the sound, the sound at the at least one input transducer including a mixture of a target signal and noise; a controller for evaluating the sound at the at least one input transducer and providing a control signal indicative of a property of the sound; a transceiver configured to establish a communication link between the first and second hearing aids allowing the exchange of the control signal between the first and second hearing aids; a transmitter for establishing an audio link for transmitting the at least one electric input signal, or a processed version thereof, to another device. The controller is configured to: transmit the locally provided control signal to, and receive a corresponding remotely provided control signal from the opposite hearing aid via the communication link, and to compare the locally provided and the remotely provided control signals and to provide a comparison control signal in dependence thereof, and to transmit the at least one electric input signal, or a processed version thereof, to the another device via the audio link in dependence of the comparison control signal.

    METHOD OF LOCALIZING A SOUND SOURCE, A HEARING DEVICE, AND A HEARING SYSTEM
    4.
    发明申请
    METHOD OF LOCALIZING A SOUND SOURCE, A HEARING DEVICE, AND A HEARING SYSTEM 审中-公开

    公开(公告)号：US20180262849A1

    公开(公告)日：2018-09-13

    申请号：US15915734

    申请日：2018-03-08

    Applicant: Oticon A/S

    Inventor： Mojtaba FARMANI ,  Michael Syskind PEDERSEN ,  Jesper JENSEN

    IPC: H04R25/00 ,  H04R3/00 ,  H04R1/10

    CPC classification number: H04R25/552 ,  H04R1/1083 ,  H04R3/005 ,  H04R25/407 ,  H04R25/43 ,  H04R25/554 ,  H04R2225/43 ,  H04R2430/23 ,  H04S7/302 ,  H04S2420/01

    Abstract: A hearing system comprising a) a multitude M of microphones, M≥2, adapted for picking up sound from the environment and to provide corresponding electric input signals rm(n), m=1, . . . , M, n representing time, rm(n) comprising a mixture of a target sound signal propagated via an acoustic propagation channel and possible additive noise signals vm(n); b) a transceiver configured to receive a wirelessly transmitted version of the target sound signal and providing an essentially noise-free target signal s(n); c) a signal processor configured to estimate a direction-of-arrival of the target sound signal relative to the user based on c1) a signal model for a received sound signal rm at microphone m through the acoustic propagation channel, wherein the mth acoustic propagation channel subjects the essentially noise-free target signal s(n) to an attenuation αm and a delay Dm; c2) a maximum likelihood methodology; and c3) relative transfer functions dm representing direction-dependent filtering effects of the head and torso of the user in the form of direction-dependent acoustic transfer functions from each of M−1 of said M microphones (m=1, . . . , M, m≠j) to a reference microphone (m=j) among said M microphones, wherein it is assumed that the attenuation αm is frequency independent whereas the delay Dm may be frequency dependent. The application further relates to a method. Embodiments of the disclosure may e.g. be useful in applications such as binaural hearing systems, e.g. binaural hearing aids systems.

    BINAURAL HEARING SYSTEM CONFIGURED TO LOCALIZE A SOUND SOURCE
    5.
    发明申请
    BINAURAL HEARING SYSTEM CONFIGURED TO LOCALIZE A SOUND SOURCE 有权

    公开(公告)号：US20180041849A1

    公开(公告)日：2018-02-08

    申请号：US15669020

    申请日：2017-08-04

    Applicant: Oticon A/S

    Inventor： Mojtaba FARMANI ,  Michael Syskind PEDERSEN ,  Jesper JENSEN

    IPC: H04R25/00

    CPC classification number: H04R25/552 ,  G10L21/0216 ,  H04R25/405 ,  H04R25/407 ,  H04R25/505 ,  H04R25/554 ,  H04S2420/01

    Abstract: A hearing aid system comprising a pair of hearing devices, e.g. hearing aids, worn at the ears of a user receives a target signal generated by a target signal source and transmitted through an acoustic channel to microphones of the hearing aid system. Due to (potential) additive environmental noise, a noisy acoustic signal is received at the microphones of the hearing system. An essentially noise-free version of the target signal is simultaneously transmitted to the hearing devices of the hearing system via a wireless connection. Based on a sound propagation model of the acoustic propagation channel from the target sound source to the microphones of the hearing aid system, and on relative transfer functions representing direction-dependent filtering effects of the head and torso of the user in the form of direction-dependent acoustic transfer functions from a microphone on one side of the head, to a microphone on the other side of the head, a direction-of-arrival (DoA) of the target sound signal relative to the user is determined using a maximum likelihood approach.

    HEARING DEVICE COMPRISING A FEEDBACK CONTROL SYSTEM
    7.
    发明申请
    HEARING DEVICE COMPRISING A FEEDBACK CONTROL SYSTEM 有权

    公开(公告)号：US20230121895A1

    公开(公告)日：2023-04-20

    申请号：US17968186

    申请日：2022-10-18

    Applicant: Oticon A/S

    Inventor： Meng GUO ,  Mojtaba FARMANI ,  Anders MENG ,  Thomas KAULBERG ,  Peter SOMMER

    IPC: H04R25/00

    Abstract: A hearing aid adapted for being worn by a user at or in an ear of the user comprises a) at least one input transducer for converting sound in an environment around the user to at least one electric input signal representing said sound; b) an output transducer for converting a processed output signal provided in dependence of said at least one electric input signal to stimuli perceivable to the user as sound; c) a feedback control system comprising an adaptive filer, the feedback control system being configured to provide an adaptively determined estimate (h*(n)) of a current feedback path (h(n)) from said output transducer to said at least one input transducer in dependence of c1) said at least one electric input signal, c2) said processed output signal, and c3) an adaptive algorithm. The hearing aid further comprises d) a database comprising a multitude (M) of previously determined candidate feedback paths (hm); and e) a controller configured to identify a change in the current feedback path (h(n)) based on the adaptively determined estimate (h*(n)) of the current feedback path and at least one of said multitude of previously determined candidate feedback paths (hm). A method of operating a hearing aid is further disclosed. The invention may e.g. be used in hearing aids, e.g. binaural hearing aid systems or headsets, or speakerphones, or combinations thereof.

    MOTION DATA BASED SIGNAL PROCESSING
    8.
    发明申请
    MOTION DATA BASED SIGNAL PROCESSING 有权

    公开(公告)号：US20220312127A1

    公开(公告)日：2022-09-29

    申请号：US17704355

    申请日：2022-03-25

    Applicant: Oticon A/S

    Inventor： Sudershan Yalgalwadi SREEPADARAO ,  Anders MENG ,  Mojtaba FARMANI ,  Martin KURIGER ,  Mikkel GRØNBECH ,  Meng GUO

    IPC: H04R25/00

    Abstract: A hearing aid includes an input unit, an output unit, a signal processing unit connected to said input unit and output unit, where the input unit, the signal processing unit and the output unit are forming part of a forward path of the hearing aid, where the signal processing unit is configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom. The hearing aid further includes a feedback control unit configured to reduce a risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path from the output unit to the input unit of said hearing aid, where the hearing aid is configured to receive motion data characterising movement and/or acceleration and/or orientation and/or position of the hearing aid to control processing.

    MOTION DATA BASED SIGNAL PROCESSING
    10.
    发明公开
    MOTION DATA BASED SIGNAL PROCESSING 审中-公开

    公开(公告)号：US20240323614A1

    公开(公告)日：2024-09-26

    申请号：US18734261

    申请日：2024-06-05

    Applicant: Oticon A/S

    Inventor： Sudershan Yalgalwadi SREEPADARAO ,  Anders MENG ,  Mojtaba FARMANI ,  Martin KURIGER ,  Mikkel GRØNBECH ,  Meng GUO

    IPC: H04R25/00

    CPC classification number: H04R25/43 ,  H04R25/507 ,  H04R25/554

    Abstract: A hearing aid includes an input unit, an output unit, a signal processing unit connected to said input unit and output unit, where the input unit, the signal processing unit and the output unit are forming part of a forward path of the hearing aid, where the signal processing unit is configured to apply a forward gain to the at least one electric input signal or a signal originating therefrom. The hearing aid further includes a feedback control unit configured to reduce a risk of howl due to acoustic, electrical, and/or mechanical feedback of an external feedback path from the output unit to the input unit of said hearing aid, where the hearing aid is configured to receive motion data characterising movement and/or acceleration and/or orientation and/or position of the hearing aid to control processing.

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